CN109929504A - Keyboard breath light solidifies black glue composition and application thereof with ultraviolet light - Google Patents
Keyboard breath light solidifies black glue composition and application thereof with ultraviolet light Download PDFInfo
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- CN109929504A CN109929504A CN201910206364.8A CN201910206364A CN109929504A CN 109929504 A CN109929504 A CN 109929504A CN 201910206364 A CN201910206364 A CN 201910206364A CN 109929504 A CN109929504 A CN 109929504A
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Abstract
The present invention relates to a kind of keyboard breath light ultraviolet lights to solidify black glue composition and application thereof.The ultraviolet light solidifies black glue composition, based on parts by weight, including following components: 30-60 parts of urethane acrylate oligomer, 20-70 parts of macromolecule acrylate monomer, 1-5 parts of epoxy resin, 1-5 parts of photoinitiator, 0.2-4 parts of carbon black.
Description
Technical field
The present invention relates to a kind of keyboard breath light ultraviolet lights to solidify black glue composition and application thereof.
Background technique
With the development of society, computor-keyboard becomes more and more magnificent in appearance, mainly on keyboard it is more very much
Breath light, it is unusual on the one hand in order to show individual character；It on the other hand is even more for the ease of night use, back lighting.It exhales
Inhaling lamp may also help in the number that user is recognized in the case where dark on keyboard.However, there is also many productions
Related problem, such as cost can improve very much, and power consumption will increase.Wherein most important problem is the scattering of light, very great Cheng
Affect to degree the effect of breath light.Solution is that upper circle shading glue is put around breath light, and light is concentrated
It is irradiated to a direction.The pedestal of breath light is usually PET material, this is a kind of highly crystalline polymer, lustrous surface, surface
Can be lower, it is difficult to be bonded.Traditional method is to use hot-setting adhesive as shading glue, then solid in high temperature furnace or baking oven
Change.However the use of heat cure glue generally requires high temperature, long-time, complex process, low efficiency, partially hard crisp, the flexibility of film forming
Difference, so that the disadvantages of finished product is not resistant to bending.
Not there is the UV glue for aiming at the exploitation of keyboard breath light in the market.Usually being bonded good UV glue to PET is to increase
Its attachment to PET often adds some thickening compositions, is easy to cause to corrode to the conducting wire of breath light.Document CN
108130037A discloses a kind of adhesive of the bonding without surface treatment PET, and component includes: organic silicon modified polyurethane propylene
40-70 parts of acid esters oligomer, 10-30 parts of acrylate monomer, 20-40 parts of tackifier, 1-5 parts of photoinitiator, 1-5 parts of filler,
0.1-3 parts of functional aid, the effect of bonding is mainly played to PET corrosiveness using tackifier, while also resulting in and leading
Electric line is corroded.
Summary of the invention
The present invention relates to a kind of keyboard breath light ultraviolet lights to solidify black glue composition.
The composition based on parts by weight, including following components: 30-60 parts of urethane acrylate oligomer, big point
Son amount acrylate monomer 20-70 parts, 1-5 parts of epoxy resin, 1-5 parts of photoinitiator, 0.2-4 parts of carbon black, are based on the poly- ammonia
Ester acrylate oligomer, 20-70 parts of the macromolecule acrylate monomer, the epoxy resin, the photoinitiator and
The total weight number of the carbon black.
According to an aspect of the present invention, the urethane acrylate oligomer is selected from aliphatic urethane acrylate
One of oligomer and polyester acrylate oligomers are a variety of.
According to an aspect of the present invention, the photoinitiator is selected from 1- hydroxycyclohexyl phenyl ketone, 2,4,6- (front threes
Base benzoyl) diphenyl phosphate oxidation, 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone, 2- hydroxyl-2- first
Base -1- phenyl -1- acetone, 2- phenyl benzyl -2- dimethyl amine -1- (4- morpholine benzyl phenyl) butanone, methyl benzoylformate and benzene
Bis- (2,4, the 6- trimethylbenzoyl) phosphine oxides of base, 2- isopropyl thioxanthone, benzoin dimethylether, the contracting of dimethyl benzil
At least one of ketone, benzophenone；Preferably bis- (the 2,4,6- trimethylbenzoyls of 1- hydroxycyclohexyl phenyl ketone and phenyl
Base) phosphine oxide mixture.
According to an aspect of the present invention, the acrylate monomer is selected from the esters of acrylic acid list for repeating ether unit
The acrylic ester monomer of body or amino modified, number-average molecular weight are greater than 500.
According to an aspect of the present invention, the acrylate monomer is selected from ethoxylated bisphenol A acrylate, polyethylene glycol
Diacrylate, polypropyleneglycol diacrylate, ethoxylated bisphenol A methacrylate, polyethylene glycol dimethacrylate,
Polypropylene glycol dimethacrylate, ethoxyquin trimethylolpropane trimethacrylate, amino modified polyethylene glycol acrylate
At least one of with amino modified polypropylene glycol acrylate.
According to an aspect of the present invention, the epoxy resin is in bisphenol A epoxide resin and bisphenol F epoxy resin
It is at least one.
The invention further relates to a kind of keyboard breath lights to solidify the preparation method of black glue composition with ultraviolet light.
The method includes by 30-60 parts of urethane acrylate oligomer, macromolecule acrylate monomer 20-70
The step of part, 1-5 parts of epoxy resin, 1-5 parts of photoinitiator and 0.2-4 parts of mixing of carbon black.
According to an aspect of the present invention, the mixing step carries out under the conditions of being protected from light.
The invention further relates to a kind of methods for making breath light light cover.
It, can UV light with formation the method includes using the composition around the breath light and pedestal
The film of change, the film scatter light around, and concentrate transmitting upwards.
The invention further relates to a kind of products comprising the breath light.
According to an aspect of the present invention, the product is keyboard, mobile phone.
According to an aspect of the present invention, the pedestal substrate of breath light is PET material, and black glue composition is sprayed on PET base
On material；Breath light material itself can be PC.
According to an aspect of the present invention, the black glue composition in use, the composition along breath light and pedestal
Surrounding dispensing covers breath light side, and light will not be scattered around, concentrates and shines upwards.
Technical effect
According to the present invention, the black glue composition has especially used the monomer of macromolecule, ehter bond, amido in structure
Adhesive force is promoted, has preferable bonding effect to PET；And monomer is avoided to substrate, especially on keyboard breath light
The corrosion of conductive silver wire guarantees energization performance.
According to the present invention, the black glue composition is in use, dispensing conveniently, facilitates operation.
According to the present invention, solvent-free in the black glue composition, environmental protection, and many application scenarios can be met.
According to the present invention, curing rate is fast, and reliability is higher after ultra-violet curing, and curing process is simple, high-efficient, save at
This.
According to the present invention, flexibility is good after glue curing, resistant to bending, and repeatedly bending guarantees power effect without embrittlement.
Specific embodiment
The present invention is described in detail below, it should be noted however that protection scope of the present invention and being not limited
System, but is determined by the appended claims.
All publications, patent application, patent and the other bibliography that this specification is mentioned all are incorporated by reference into
Herein.Unless otherwise defined, all technical and scientific terms used herein all there are those skilled in the art routinely to manage
The meaning of solution.In case of conflict, it is subject to the definition of this specification.
In the context of the present specification, other than the content clearly stated, any matters or item that do not mention are equal
It is directly applicable in those of known in the art without carrying out any change.Moreover, any embodiment described herein can be with
It is freely combined with one or more other embodiments described herein, the technical solution or technical idea formed therefrom regards
For the original disclosure of the present invention or a part of original description, and be not considered as not disclosing or be expected herein it is new in
Hold, unless those skilled in the art think that the combination is obvious unreasonable.
The performance detection project that ultraviolet light of the present invention solidifies black glue composition is as follows:
Curing time: 100mW/cm is used2The ultraviolet light irradiation of energy observes glue curing feelings under different irradiation times
Condition, corresponding time as curing time is fully cured.
Shear strength: after being fully cured using UV irradiation, pulling force machine testing shear strength, formula are as follows: shear strength are used
=maximum pull/bond area (units MPa).
Bend test: after UV solidification, carrying out 180 degree front and back sides along size application point and bend repeatedly 20 times, observe glue surface state,
Without embrittlement, unchanged, to pass through.
Be powered test: placing hot and humid environment (85 DEG C of temperature, humidity 85%) after sizing solidification on keyboard breath light
72 hours, and after carrying out bend test, the observation breath light that is powered whether electrified light emitting, be powered normally to pass through.
[embodiment 1]
The first step is 50 parts of aliphatic urethane acrylates, 2 parts of bisphenol A epoxide resins, 20 parts of polyethylene glycol (400)
Diacrylate (molecular weight 512) and 22 parts of amino modified polyether acrylate (state, which refines, learns limited liability company,
GU8100Y, molecular weight 600) it puts into a mixing bowl after weighing and is stirred, mixing speed is set as 90-120RPM, stirs 15 points
Clock；
Second step, by 3 parts of 1- hydroxycyclohexyl phenyl ketone and 1 part 2,4,6- (trimethylbenzoyl) dipheny oxides
To change to put into a mixing bowl after phosphorus weighing and stir, mixing speed is set as 100-120RPM, and mixing time 30 minutes；
0.5 part of carbon black is put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, and mixing time is 30 minutes,
Finally mixture is filtered and packaged.
[embodiment 2]
The first step is 48 parts of aliphatic urethane acrylates, 1 part of bisphenol F epoxy resin, 10 parts of ethoxylated bisphenol A propylene
(state, which refines, learns limited liability company, GU8100Z, molecule for acid esters (molecular weight 776), 10 parts of amino modified polyether acrylate
Amount puts into a mixing bowl after 1000) weighing and is stirred, and mixing speed is set as 90-120RPM, stirs 25 minutes；
Second step, by 3 parts of 1- hydroxycyclohexyl phenyl ketone, 1 part of dimethyl benzil ketals, 1 part of benzophenone,
0.1 part of antioxidant puts into a mixing bowl after 0.5 part of dispersing agent weighing and stirs, and mixing speed is set as 100-120RPM, stirring
Time 30 minutes；
3 parts of filler fumed silicas and 2 parts of carbon blacks are put into a mixing bowl by third step, and mixing speed is set as 120-
150RPM, mixing time are 30 minutes, finally filter and package mixture.
[embodiment 3]
The first step is 48 parts of aliphatic urethane acrylates, 5 parts of bisphenol A epoxide resin, 5 parts of three hydroxyl first of ethoxyquin
It is thrown after base propane triacrylate (molecular weight 692) and 32 parts of polyethylene glycol dimethacrylate (molecular weight 742) weighing
Enter in a mixing bowl and be stirred, mixing speed is set as 90-120RPM, stirs 25 minutes；
Second step, by 0.5 part of 1- hydroxycyclohexyl phenyl ketone, 0.5 part 2,4,6- trimethylbenzoyl phenyl phosphines
Acetoacetic ester, 0.5 part of antioxidant put into a mixing bowl after 0.5 part of dispersing agent weighing and stir, and mixing speed is set as 100-
120RPM, mixing time 30 minutes；
5 parts of fillers and 1 part of carbon black are put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, and mixing time is
30 minutes, finally mixture is filtered and packaged.
[embodiment 4]
The first step is 60 parts of aliphatic urethane acrylates, 3 parts 35 parts of bisphenol A epoxide resin of two propylene of polypropylene glycol
(state, which refines, learns limited liability company, GU8100W, molecule for acid esters (molecular weight 808) and 35 parts of amino modified polyether acrylate
Amount puts into a mixing bowl after 1000) weighing and is stirred, and mixing speed is set as 90-120RPM, stirs 25 minutes；
Second step, by 3 parts of 2- hydroxy-2-methyl -1- phenyl -1- acetone, 2 part 2,4,6- trimethylbenzoyl phenyls
Phosphinic acid ethyl ester, 1 part of antioxidant put into a mixing bowl after 2 parts of dispersing agent weighing and stir, and mixing speed is set as 100-
120RPM, mixing time 30 minutes；
2 parts of fillers and 0.2 part of carbon black are put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, mixing time
It is 30 minutes, finally filters and packages mixture.
[embodiment 5]
The first step is 40 parts of polyester polyurethane acrylates, 15 parts of aliphatic urethane acrylates, 4 parts of Bisphenol F rings
Oxygen resin, 25 parts of amino modified polyether acrylate (state, which refines, learns limited liability company, GU8100W, molecular weight 1000) and
It is put into after 20 parts of amino modified polyether acrylate (state, which refines, learns limited liability company, GU8100Z, molecular weight 1000) weighing
It is stirred in a mixing bowl, mixing speed is set as 90-120RPM, stirs 25 minutes；
Second step, by 3 parts of 2- hydroxy-2-methyl -1- phenyl -1- acetone, 0.2 part of antioxidant, 0.5 part of dispersing agent
It putting into a mixing bowl and stirs after weighing, mixing speed is set as 100-120RPM, and mixing time 30 minutes；
1 part of filler and 4 parts of carbon blacks are put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, and mixing time is
30 minutes, finally mixture is filtered and packaged.
[embodiment 6]
The first step 30 parts of aliphatic urethane acrylates, 3 parts of bisphenol A epoxide resins, 35 parts of ethoxylated bisphenol A and
Acrylate (molecular weight 808) and 25 parts of polyethyleneglycol diacrylate (molecular weight 742) weighing after put into a mixing bowl in into
Row stirring, mixing speed are set as 90-120RPM, stir 25 minutes；
Second step, by 2 parts of 2- hydroxy-2-methyl -1- phenyl -1- acetone, 1.5 part 2,4,6- trimethylbenzoyl benzene
Base phosphinic acid ethyl ester, 0.2 part of antioxidant put into a mixing bowl after 1 part of dispersing agent weighing and stir, and mixing speed is set as 100-
120RPM, mixing time 30 minutes；
4 parts of fillers and 3 parts of carbon blacks are put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, and mixing time is
30 minutes, finally mixture is filtered and packaged.
[comparative example 1]
The first step is 60 parts of organic silicon modified polyurethane acrylate, 15 parts of isobornyl methacrylate and 32 parts
It puts into a mixing bowl and is stirred after N,N-DMAA weighing, mixing speed is set as 90-120RPM, stirs 25 points
Clock；
Second step, by 3 parts of 2- hydroxy-2-methyl -1- phenyl -1- acetone, 1 part 2,4,6- trimethylbenzoyl phenyls
Phosphinic acid ethyl ester puts into a mixing bowl after 0.5 part of dispersing agent weighing and stirs, and mixing speed is set as 100-120RPM, mixing time
30 minutes；
3.5 parts of fillers and 1 part of carbon black are put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, mixing time
It is 30 minutes, finally filters and packages mixture.
[comparative example 2]
The first step is 40 parts of polyester acrylates, 25 parts of isobornyl methacrylate and 22 parts of N, N- dimethyl propylene
It puts into a mixing bowl and is stirred after acrylamide weighing, mixing speed is set as 90-120RPM, stirs 15 minutes；
Second step, 1- hydroxycyclohexyl phenyl ketone, 1 part 2,4,6- trimethylbenzoyl phenyl phosphinic acid ethyl esters, 0.5 part
Dispersing agent weighing after put into a mixing bowl and stir, mixing speed is set as 100-120RPM, mixing time 30 minutes；
3.5 parts of fillers and 1 part of carbon black are put into a mixing bowl by third step, and mixing speed is set as 120-150RPM, mixing time
It is 30 minutes, finally filters and packages mixture.
Test result is as follows for each composition of [embodiment 1-6] and [comparative example 1-2] preparation:
| Serial number | Test 1 | Test 2 | Test 3 | Test 3 |
| Test method | Curing time | Shear strength Mpa | Bend test | Be powered test |
| Embodiment 1 | 7s | 6MPa | Pass through | Pass through |
| Embodiment 2 | 8s | 5.5MPa | Pass through | Pass through |
| Embodiment 3 | 8s | 5.3MPa | Pass through | Pass through |
| Embodiment 4 | 7s | 6.2MPa | Pass through | Pass through |
| Embodiment 5 | 8s | 5.8MPa | Pass through | Pass through |
| Embodiment 6 | 8s | 5.5MPa | Pass through | Pass through |
| Comparative example 1 | 40s | 6.5MPa | Pass through | Do not pass through |
| Comparative example 2 | 8s | 5.7MPa | Pass through | Do not pass through |
Above data, which can be seen that 6 embodiments, preferable bonding, and curing time is short, intact in bending rear surface
And remain powered on no problem.In comparative example comparison, the curing reaction efficiency in comparative example 1 is lower, and the time is relatively long, purple
Outer energy is relatively high, is easy to produce destruction to material.The shear strength of comparative example 1 and comparative example 2 is preferable, but due to
Infringement of the integral formula for conducting wire can not pass through energization bend test.
Claims (10)
1. a kind of keyboard breath light solidifies black glue composition with ultraviolet light, based on parts by weight, including following components: polyurethane third
30-60 parts of olefin(e) acid ester oligomer, 20-70 parts of macromolecule acrylate monomer, 1-5 parts of epoxy resin, 1-5 parts of photoinitiator,
0.2-4 parts of carbon black, based on the urethane acrylate oligomer, 20-70 parts of the macromolecule acrylate monomer, described
The total weight number of epoxy resin, the photoinitiator and the carbon black.
2. ultraviolet light solidifies black glue composition according to claim 1, which is characterized in that the urethane acrylate is oligomeric
Object is selected from one of aliphatic urethane acrylate oligomer and polyester acrylate oligomers or a variety of；
The photoinitiator be selected from 1- hydroxycyclohexyl phenyl ketone, 2,4,6- (trimethylbenzoyl) diphenyl phosphate oxidation,
2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone, 2- hydroxy-2-methyl-1- phenyl-1- acetone, 2- phenyl benzyl-
2- dimethyl amine -1- (4- morpholine benzyl phenyl) butanone, methyl benzoylformate and phenyl are bis- (2,4,6- trimethylbenzoyl)
Phosphine oxide, at least one of 2- isopropyl thioxanthone, benzoin dimethylether, dimethyl benzil ketals, benzophenone；It is excellent
It is selected as the mixture of 1- hydroxycyclohexyl phenyl ketone and bis- (2,4,6- trimethylbenzoyl) phosphine oxides of phenyl.
3. ultraviolet light solidifies black glue composition according to claim 1, which is characterized in that the acrylate monomer is selected from band
The acrylic ester monomer of ether unit or the acrylic ester monomer of amino modified are repeated, number-average molecular weight is greater than 500.
4. according to claim 1 or 3 ultraviolet lights solidify black glue composition, which is characterized in that the acrylate monomer choosing
From ethoxylated bisphenol A acrylate, polyethyleneglycol diacrylate, polypropyleneglycol diacrylate, ethoxylated bisphenol A methyl-prop
Olefin(e) acid ester, polyethylene glycol dimethacrylate, polypropylene glycol dimethacrylate, ethoxyquin trimethylolpropane tris propylene
At least one of acid esters, amino modified polyethylene glycol acrylate and amino modified polypropylene glycol acrylate.
5. ultraviolet light solidifies black glue composition according to claim 1, which is characterized in that the epoxy resin is selected from bisphenol-A
At least one of epoxy resin and bisphenol F epoxy resin.
6. a kind of keyboard breath light solidifies the preparation method of black glue composition with ultraviolet light, including urethane acrylate is oligomeric
30-60 parts of object, 20-70 parts of macromolecule acrylate monomer, 1-5 parts of epoxy resin, 1-5 parts of photoinitiator and carbon black 0.2-4
The step of part mixing.
7. ultraviolet light solidifies the preparation method of black glue composition according to claim 6, which is characterized in that the mixing step
It is carried out under the conditions of being protected from light.
8. a kind of method for making breath light light cover, including using the composition as claimed in claim 1 to 7 in institute
It states around breath light and pedestal, to form the film of uV curable, the film scatters light around, and collects
In emit upwards.
9. a kind of product comprising breath light described in claim 9.
10. product according to claim 9, which is characterized in that the product is keyboard, mobile phone.
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| CN201910206364.8A CN109929504B (en) | 2019-03-19 | 2019-03-19 | Ultraviolet curing black glue composition for keyboard breathing lamp and application thereof |
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| CN201910206364.8A CN109929504B (en) | 2019-03-19 | 2019-03-19 | Ultraviolet curing black glue composition for keyboard breathing lamp and application thereof |
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| CN111253903A (en) * | 2020-02-20 | 2020-06-09 | 上海捷固智能科技有限公司 | High-toughness high-temperature-resistant UV peelable adhesive and preparation method and application thereof |
| CN113072911A (en) * | 2021-02-25 | 2021-07-06 | 深圳广恒威科技有限公司 | UV-curable adhesive with curing-free and high thermal budget properties and use thereof |
| WO2023063886A3 (en) * | 2021-10-13 | 2023-06-22 | Nanyang Technological University | Photothermal switchable adhesive |
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| CN104169388A (en) * | 2012-02-17 | 2014-11-26 | 三键精密化学有限公司 | Photocurable sheet-type adhesive composition for optical use |
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| WO2023063886A3 (en) * | 2021-10-13 | 2023-06-22 | Nanyang Technological University | Photothermal switchable adhesive |
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